finding radial displacement using design simulation in nx4

[customcustom]

Does anyone know how to apply a torque on a cylinder using a cantilevered end in order to determine radial displacement of cylinder?
ive done a fea analysis but it just outputs the stress distribution on the point where i apply the force on the cantilevered end and doesnt translate it to the cylinder? any suggestions?

 

[cowski]

In your FEA model, how is the lever attached to the cylinder? Also, what are your boundary conditions?

 

[customcustom]

The lever is only attached by mating and 'surf to surf contact'. I also saw a 'mesh mating' option- but havn't used this.
I have not set any boundary conditions- how would I go about doing this? and is it required?
At this stage- the force applied to the lever is not being transfered to the cylinder in order to generate a torque..

Thanks for your help